Numerical Analysis of Compressible Fluids and Elastic Structures Interaction

[+] Author and Article Information
Maria Angela Vaz dos Santos

Department of Materials Science and Building, Fundação Universidade do Rio Grande, Rua Eng Alfredo Huch, 475, 96201-900 Rio Grande RS Brazil

Armando Miguel Awruch

Graduate Program in Civil and Mechanical Engineering, Universidade Federal do Rio Grande do Sul, Av Osvaldo Aranha, 99, 3° Andar, 90035-190 Porto Alegre RS Brazil

Appl. Mech. Rev 48(11S), S195-S202 (Nov 01, 1995) doi:10.1115/1.3005071 History: Online April 29, 2009


A finite element algorithm to simulate two dimensional flows of viscous and inviscid compressible fluids for a wide range of Mach numbers is presented in this work. This model is coupled to immersed deformable structures through equilibrium and compatibility conditions in order to analyze its dynamic behavior. For the fluid, time integration is performed by a two-step Taylor-Galerkin explicit scheme and Newmark’s method is used to obtain the dynamic response of the structure. An arbitrary mixed Euler-Lagrange description is used to re-define a new finite element mesh in the presence of the immersed structure displacements. Finally, several examples are included showing the model behavior and possibilities for future expansions.

Copyright © 1995 by The American Society of Mechanical Engineers
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